iifgFxVo.dll - Adware.Win32.Virtumonde.pjj

I have this file that ZASS keeps picking up, not sure if its a legit file. I have tried all the ZASS options - Quarantine, Repair, Delete &amp; Delete on reboot. Nothing works, I cannot stop it popping up unless I permanently ignore it but if it is a virus I most definitely do not want to ignore it